Northwestern Juvenile Project (Cook County, Illinois), Follow-up 5, 2002-2006

This study contains data from the fifth follow-up interview of the Northwestern Juvenile Project (NJP), a longitudinal assessment of alcohol, drug, or mental service treatment needs of juvenile detainees. The fifth follow-up occurred approximately 6 years after the baseline interview and focused on studying the development and persistence of psychiatric disorders, related predictive variables, patterns of drug use, and other risk behaviors. The project's aims included studying (1) development and persistence of alcohol, drug, and mental disorders and (2) pathways and patterns of risky behaviors. Changes in disorders over time were studied (including onset, remission, and recurrence), comorbidity, associated functional impairments, and the risk and protective factors related to these disorders and impairments. This study addressed patterns and sequences of the development of drug use and related variables, focusing on gender differences, racial/ethnic differences, the antecedents of these risky behaviors (risk and protective factors), and how these behaviors were interrelated. The original sample included 1829 randomly selected youth, 1172 males and 657 females, then 10 to 18 years old, enrolled in the study as they entered the Cook County Juvenile Temporary Detention Center from 1995 to 1998. Among the sample were 1005 African Americans, 524 Hispanics, and 296 non-Hispanic white respondents. Participants were tracked from the time they left detention. All participants were eligible for the fifth follow-up interview. Re-interviews were conducted regardless of where respondents were living when their follow-up interview was due: in the community, correctional settings, or by telephone if they lived farther than two hours from Chicago.

本研究汇集了西北青少年项目（NJP）第五次跟踪访谈的数据，该项目为一项对青少年拘留所酒精、药物或精神健康服务需求的纵向评估。第五次跟踪访谈在大基线访谈后约6年进行，旨在研究精神疾病的进展和持续状态，相关预测变量，药物使用模式以及其他风险行为。项目目标包括研究（1）酒精、药物和精神疾病的进展和持续状态以及（2）风险行为的路径和模式。研究还包括了疾病随时间的变化（包括发作、缓解和复发）、共病、相关功能损害以及与这些疾病和损害相关的风险和保护因素。本研究探讨了药物使用及其相关变量的发展模式和序列，重点关注性别差异、种族/民族差异，这些风险行为的先兆（风险和保护因素），以及这些行为之间的相互关系。原始样本包括1829名随机选取的青少年，其中1172名男性，657名女性，年龄在10至18岁之间，他们在1995年至1998年进入库克县青少年临时拘留中心时被纳入研究。样本中包括1005名非裔美国人，524名西班牙裔和296名非西班牙裔白人受访者。参与者从他们离开拘留所的时间开始被追踪。所有参与者都有资格接受第五次跟踪访谈。无论受访者跟踪访谈到期时居住在哪里：社区、矫正机构，还是如果他们居住在距离芝加哥两小时以上的地方，都会进行重新访谈。